I was told the air mass meter needed replacing as

that means you have a mass air flow sensor problem located on air intake first try cleaning it be real gentle when cleaning ok thhey sell electrical spray cleaner at auto parts use that then clear the code auto zone can do that for free drive car if it comes back then replace the mass air flow sensor ok let me know

Engine knock check the oil is it deeply black with metallic substance like silvery or aluminumish.Is it turbo and used all the oil. if there is no oil put some in it if there is oil then youll need to replace the engine or rebuild it

Lambda sensors, they measure your fuel air ratio being burnt by the engine and addapt the management system accordingly. You will have to put them both back or the check engine light will stay on.

Yes, your intercooler is a problem cos it cools down the turbo charger. The turbo is what gives you your extra power, and when it overheats, it loses pressure and thatcauses loss of power.

Hi, Since you have both codes Fuel system lean and MAF low I would bet money on that you have an intake air leak after the throttle. Check all hoses connected to the intake manifold, gaskets, injectors are put in place etc.

Change the mass air flow meter

mass air meter

Try to unplug the mass air flow meter. The mass air flow meter is atached to the air filter housing on the left of the engine bay at the front edge (left side when sitting in the drivers seat). It will be a somewhat flat 5 or 6 pin connector that mounts to the air box on one side and goes to the black air intake tube that goes down to the back of the engine.

Do it with the key off of course. With the mass air flow meter unplugged start the car and see if it will idle. if it does the mass air flow meter is bad. If the car will still not run then there is a good chance the Eletronic Throttle Module (ETM) is failing. The ETM is under an extended waranty from Volvo for 10 years or 200,000 miles.

I would suggest taking it to a garage or directly to the dealer.

Of course there are numerous other things it could be, but the Mass Air Flow Meter and the ETM are the most likely.


hope this helps.

mass air flow sensor code

replace the temp sensor in the thermostat housing behind alt(2 wires)